Proof of full COVID-19 vaccination is now required for all visitors ages
12+. Plan your visit
See what plankton live under and around the Exploratorium.
Light projected through a drop of water reveals an abundance of life.
Shine some light on brine shrimp behavior.
Plankton can distinguish between different colors of light.
Explore the variety of organisms that live on our piers in the Bay.
All these organisms are adapted to life in California's rocky tidal zone.
Different types of phytoplankton multiply or die off in response to changing ocean conditions.
(Embarcadero at Green Street)
San Francisco, CA 94111
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